Mozilla Firefox Screenshot
Mozilla Firefox is a free and open source web browser descended from the Mozilla Application Suite and managed by Mozilla Corporation. Firefox had 22.51% of the recorded usage share of web browsers as of May 2009, making it the second most popular browser in terms of current use worldwide, after Internet Explorer. To display web pages, Firefox uses the Gecko layout engine, which implements most current web standards in addition to a few features which are intended to anticipate likely additions to the standards.